Plain bearings
A plain bearing, or more commonly sliding bearing and slide bearing (in railroading sometimes called a solid bearing, journal bearing, or friction bearing[citation needed]), is the simplest type of bearing, comprising just a bearing surface and no rolling elements. Therefore, the journal (i.e., the part of the shaft in contact with the bearing) slides over the bearing surface. The simplest example of a plain bearing is a shaft rotating in a hole. A simple linear bearing can be a pair of flat surfaces designed to allow motion; e.g., a drawer and the slides it rests on or the ways on the bed of a lathe.
Plain bearings, in general, are the least expensive type of bearing. They are also compact and lightweight, and they have a high load-carrying capacity.
- Toyana TUP1 10.06 plain bearings
- 90 mm
- 3.4100 in
- 16 mm x 32 mm x 21 mm ISO GE16XDO-2RS plain bearings
- 2.1875 in
- 9700 lbf
- LS SIQ16ES plain bearings
- 1.1875 in
- 4410 lbf
- Toyana TUP2 280.120 plain bearings
- 1.1875 in
- 2150 lbf
- AST AST650 F354540 plain bearings
- 0.2500 in
- 1060 lb
- 12 mm x 26 mm x 12 mm NMB MBYT12 plain bearings
- 1.0625 in
- 2150 lbf
- AST AST20 24080 plain bearings
- 35 mm
- 2150 lbf
- 25 mm x 42 mm x 20 mm INA GF 25 DO plain bearings
- Two-Bolt Base
- 1.8750 in
- Toyana GE 110 ECR-2RS plain bearings
- 0.9375 in
- 3150 lbf
- Toyana TUP2 18.25 plain bearings
- 0.5000 in
- 7/8 in
- Timken 50FS75 plain bearings
- 2.1875 in
- 9700 lbf
- 30 mm x 34,8 mm x 37 mm ISO SI 30 plain bearings
- 60 mm
- 154.99 kN